Needless to say, it doesn't go very well. And, despite the fact that many family members are reunited at the Dragonpit summit, there's still a lot of bad blood. And, after coming face-to-face (we're talking inches) with a White Walker, Cersei finally realizes the northern threat isn't just a silly joke. But, Cersei being Cersei, that doesn't necessarily mean she's going to help.

Of course, the Dragonpit summit wasn't the only intense, adrenaline-inducing part of the epic, 80-minute episode, titled the "Dragon and the Wolf". Here are five of the most jaw-dropping moments from the Game of Thrones Season 7 finale.

The 5 most jaw-dropping moments from the 'Game of Thrones' Season 7 finale

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Helen Sloan/Courtesy of HBO

5. Jaime leaves Cersei behind and heads north

After seven seasons of lies, backstabbing, and doing some downright twisted shit, Cersei has finally pushed Jaime away—possibly for good. The final straw? Her false promise of supporting the fight against the Army of the Dead, and her secret plan with Euron to bring in the Golden Company (with some help from the Iron Bank) while her foes are busy battling the White Walkers.

Even the promise of Cersei's pregnancy (we still have a sneaking suspicion she might be lying) couldn't make him stay. The last shot of Jaime shows him headed north solo, as the snowy winds of winter reach King's Landing for the first time in nearly a decade.

Helen Sloan/Courtesy of HBO

4. We (finally) learn that Jon Snow is the legitimate son of Rhaegar Targaryen and Lyanna Stark

After (quite literally) years of speculation, Thrones fans finally got the big reveal they've been waiting for over the span of multiple seasons, as well as confirmation of a (thanks to Gilly) more recent twist: Jon Snow isn't just the son of Rhaegar Targaryen and Lyanna Stark, he is their legitimate son. This means a few things:

Rhaeger's marriage to Lyanna, after the annulment of his marriage to Elia Martell, means that Jon (real name Aegon Targaryen) is the true heir to the Iron Throne.

King Robert Baratheon's rebellion to free the "abducted" Lyanna, to whom he was betrothed, was built on a lie.

Jon Snow and Daenerys Targaryen are (surprise, surprise) related.

Courtesy of HBO

3. Meanwhile...Jon and Daenerys get it on, blissfully unaware of their family ties

On a show like Game of Thrones, incest is, for one very strange reason or another, something you can't seem to get away from. And from the moment Jon and Daenerys (his aunt) laid eyes on each other this season, the pair seemed disturbingly destined to follow in the footsteps of sister-brother lovebirds, Cersei and Jaime Lannister.

In Sunday night's Season 7 finale—as we get the official word on their family ties from Bran Stark (Isaac Hempstead Wright) and Sam Tarly (John Bradley-West)—all of that pent-up sexual tension between Jon and Dany is released when the pair get it on in one of their ship's cabins. We have a feeling Season 8 is going to bring about more than a few awkard moments between the two Targaryens.

Helen Sloan/Courtesy of HBO

2. Sansa and Arya join forces to execute Littlefinger

In one of the more genuinely surprising turn of events, Sansa and Arya got past their differences and covertly teamed up to sentence and execute the too-clever-for-his-own-good Lord Baelish (aka Littlefinger).

Littlefinger's death was more poetic than most get on the notoriously gruesome HBO series: For a man who was always three steps ahead of every other character on the show, he was unwittingly brought to his end by a girl he never thought would outsmart him—his throat cut by his very own blade (the same dagger he'd used to plot against the Starks).

Courtesy of HBO

1. The White Walker ice dragon brings down the Wall at Eastwatch

OK, so you probably saw this one coming—we did, at least—but that doesn't make the series' closing sequence any less epic or terrifying. Given that the Night King went through all of that trouble to haul Dany's dragon, Viserion, out of the ice-covered lake north of the Wall, there was no question he was going to use it to rain down destruction at some point. And, boy, did he ever.

The White Walker dragon, with its icy blue flames, quite literally brought down the house at Eastwatch, destroying a large chunk of the Wall and creating an access point for the Army of the Dead to march its way straight into the Seven Kingdoms. Things are not looking good—especially if Cersei decides to follow through with her plan to turn her back on, well, just about everyone.